523155044423430 has 24 divisors (see below), whose sum is σ = 1360203115501152. Its totient is φ = 139508011846224.

The previous prime is 523155044423411. The next prime is 523155044423437. The reversal of 523155044423430 is 34324440551325.

523155044423430 is a `hidden beast` number, since 5 + 2 + 3 + 1 + 550 + 4 + 44 + 23 + 4 + 30 = 666.

It is a super-2 number, since 2×523155044423430² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523155044423437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2906416913374 + ... + 2906416913553.

It is an arithmetic number, because the mean of its divisors is an integer number (56675129812548).

Almost surely, 2^{523155044423430} is an apocalyptic number.

523155044423430 is an abundant number, since it is smaller than the sum of its proper divisors (837048071077722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

523155044423430 is a wasteful number, since it uses less digits than its factorization.

523155044423430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5812833826940 (or 5812833826937 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 45.

Adding to 523155044423430 its reverse (34324440551325), we get a palindrome (557479484974755).

The spelling of 523155044423430 in words is "five hundred twenty-three trillion, one hundred fifty-five billion, forty-four million, four hundred twenty-three thousand, four hundred thirty".